First California Mortgage is upgrading its Petaluma home address with a large expansion planned for late this year.

The 38-year-old mortgage lender in early October entered a lease for 24,000 square feet of office space in Sequoia Center at 1400 N. McDowell Blvd. in Petaluma.

First Cal plans to move into the office by the end of 2015.

“First Cal’s expansion is another great example of the growing Petaluma economy,” said Scott Stranzl, vice president of leasing for Basin Street Properties, in a statement.

“We’re pleased to be able to accommodate our growth in Petaluma, which has been First Cal’s home for so many years,” said Chris Hart, First California’s CEO. The company was founded in 1977.

Sequoia Center, located in the Redwood Business Park, has 210,000 square feet of office space and is owned by Reno, Nev.-based Basin Street Properties.

Representing Basin Street Properties was Brian Foster of Cushman & Wakefield. First Cal was represented by Rick Sherburne and Bob Taylor of CBRE.